Fix matplotlib high DPI configuration in code execution environment

- Added explicit matplotlib DPI settings in run_safe_exec function
- Ensured 600 DPI configuration persists in dynamic code execution
- Fixed Streamlit image display to use full resolution without width limits
- Plots should now generate and display at true high resolution

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -498,8 +498,8 @@ def show_custom_response(response):
         try:
             if isinstance(content, str) and (content.endswith('.png') or content.endswith('.jpg')):
                 if os.path.exists(content):
-                    # Display image without showing filename
-                    st.image(content, width=800)
+                    # Display image at full resolution without width restriction
+                    st.image(content, use_column_width=True)
                     return {"is_image": True}
             # Also handle case where content shows filename but we want to show image
             elif isinstance(content, str) and any(ext in content for ext in ['.png', '.jpg']):
@@ -509,7 +509,7 @@ def show_custom_response(response):
                 if filename_match:
                     filename = filename_match.group(1)
                     if os.path.exists(filename):
-                        st.image(filename, width=800)
+                        st.image(filename, use_column_width=True)
                         return {"is_image": True}
         except:
             pass

src.py

@@ -144,6 +144,19 @@ def ask_question(model_name, question):
     def run_safe_exec(full_code, df=None, extra_globals=None):
         """Safely execute generated code and handle errors"""
         local_vars = {}
+        
+        # Force matplotlib to use high DPI settings in exec environment
+        plt.style.use('vayuchat.mplstyle')
+        plt.rcParams['figure.dpi'] = 600
+        plt.rcParams['savefig.dpi'] = 600
+        plt.rcParams['figure.figsize'] = [14, 8]
+        plt.rcParams['font.size'] = 14
+        plt.rcParams['axes.titlesize'] = 16
+        plt.rcParams['axes.labelsize'] = 14
+        plt.rcParams['xtick.labelsize'] = 12
+        plt.rcParams['ytick.labelsize'] = 12
+        plt.rcParams['legend.fontsize'] = 12
+        
         global_vars = {
             'pd': pd, 'plt': plt, 'os': os,
             'sns': __import__('seaborn'),